Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11688534 | Process for producing R-T-B-based rare earth magnet particles, R-T-B-based rare earth magnet particles, and bonded magnet | Shohei Kaneko, Kuniyoshi Shigeoka, Nobuhiro Katayama | 2023-06-27 |
| 11120932 | R-T-B-based rare earth magnet particles, and bonded magnets containing R-T-B-based rare earth magnet particles | Nobuhiro Katayama, Hirofumi Kawasaki | 2021-09-14 |
| 8907755 | R-T-B-based rare earth magnet particles, process for producing the R-T-B- based rare earth magnet particles, and bonded magnet | Nobuhiro Katayama, Hirofumi Kawasaki | 2014-12-09 |
| 8481179 | Rare earth magnet having high strength and high electrical resistance | Katsuhiko Mori, Ryoji Nakayama, Muneaki Watanabe, Tetsurou Tayu, Yoshio Kawashita +1 more | 2013-07-09 |
| 7919200 | Rare earth magnet having high strength and high electrical resistance | Katsuhiko Mori, Ryoji Nakayama, Muneaki Watanabe, Tetsurou Tayu, Yoshio Kawashita +1 more | 2011-04-05 |
| 7371271 | Composite soft magnetic sintered material having high density and high magnetic permeability and method for preparation thereof | Kazunori Igarashi, Ryoji Nakayama, Muneaki Watanabe | 2008-05-13 |
| 6641779 | Fe-based sintered valve seat having high strength and method for producing the same | Kinya Kawase | 2003-11-04 |
| 6464749 | Fe-based sintered valve seat having high strength and method for producing the same | Kinya Kawase | 2002-10-15 |
| 5993732 | Method for manufacturing a rare earth magnetic powder having high magnetic anisotropy | Ryoji Nakayama, Yoshinari Ishii, Norihito Fukatsu | 1999-11-30 |